EP0384735A1 - Instrument chirurgical coupant - Google Patents
Instrument chirurgical coupant Download PDFInfo
- Publication number
- EP0384735A1 EP0384735A1 EP90301871A EP90301871A EP0384735A1 EP 0384735 A1 EP0384735 A1 EP 0384735A1 EP 90301871 A EP90301871 A EP 90301871A EP 90301871 A EP90301871 A EP 90301871A EP 0384735 A1 EP0384735 A1 EP 0384735A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- tubular member
- inner tubular
- distal end
- outer tubular
- opening
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/32—Surgical cutting instruments
- A61B17/320016—Endoscopic cutting instruments, e.g. arthroscopes, resectoscopes
- A61B17/32002—Endoscopic cutting instruments, e.g. arthroscopes, resectoscopes with continuously rotating, oscillating or reciprocating cutting instruments
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00831—Material properties
- A61B2017/0084—Material properties low friction
- A61B2017/00845—Material properties low friction of moving parts with respect to each other
Definitions
- the present invention pertains to surgical cutting instruments and, more particularly, to surgical cutting instruments having elongate, inner and outer tubular members with distal ends cooperating to cut or resect bodily tissue, the cut tissue being aspirated through the inner member.
- Surgical cutting instruments for use in closed surgery conventionally have an elongate outer tubular member terminating at a distal end having an opening in the side wall, the end wall or both to form a cutting port or window and an elongate inner tubular member concentrically disposed in the outer tubular member and having a distal end disposed adjacent the opening in the distal end of the outer tubular member.
- the distal end of the inner tubular member has a surface or edge for engaging tissue via the opening in the distal end of the outer tubular member and in many cases cooperates with the opening to shear or cut tissue.
- the inner tubular member is rotatably driven at its proximal end, normally via a handpiece having a small electric motor therein controlled by finger-actuated switches on the handpiece, a foot switch or switches on a console supplying power to the handpiece.
- the distal end of the inner tubular member can have various configurations dependent upon the surgical procedure to be performed, and the opening in the distal end of the outer tubular member has a configuration to cooperate with the particular configuration of the distal end of the inner tubular member.
- the inner and outer tubular members can be configured to produce whisker cutting, synovial resection, arthroplasty burring or abrading, side cutting, meniscus cutting, trimming, full radius resection, end cutting and the like, and the various configurations are referred to herein generically as "cutting blades or edges". Cut tissue is aspirated through the hollow lumen of the inner tubular member to be collected via a tube communicating with the handpiece.
- bearing surfaces at the distal end of the surgical cutting instrument or at spaced positions along the surgical cutting instrument requires complex structure and manufacturing techniques and results in a relatively expensive product that cannot be feasibly supplied for single patient use, i.e., be disposable. Additionally, such bearing structures present increased opportunities for malfunction due to sticking and obstruction.
- Another manner in which to precisely position and align the inner member is to make the outer diameter of the inner member substantially the same as the inner diameter of the outer tubular member; however, since it is preferred to construct the inner tubular member and the outer tubular member of stainless steel and since stainless steel is relatively soft and does not serve well as a bearing surface, this approach has had the disadvantage of causing galling and subsequent seizure.
- Titanium nitride has been used on cutting tools for industrial applications to provide the benefits of longer life and higher productivity as described, for example, in various literature and brochures from Balzers Tool Coatings, Inc.
- TiN coatings are applied by placing physically and chemically clean tools in fixtures to become the cathode of a high voltage circuit in a reaction chamber that is evacuated and charged with argon. By sputter cleaning, positive argon ions are propelled by a high voltage field and blast the tool to make the tool atomically clean. An electron beam gun heats titanium until the titanium evaporates. Nitrogen is introduced into the chamber, and the titanium ions are electrically accelerated toward the tools.
- the titanium ion bombardment combines with the nitrogen gas to form a coating of TiN about 2.54 ⁇ m (0.0001 inch) thick on the surface of the tool.
- the coating process is called "physical vapor deposition" and operates at a temperature of about 482°C (900°F).
- cutting tools have been coated at the cutting edges thereof with TiN by physical vapor deposition for the purpose of hardening the cutting edge thereby providing the cutting tool with an extended useful life; however, there has been no recognition of the use of TiN coatings by physical vapor deposition to limit heat conduction along a rotating tubular member to produce a bearing structure for inner and outer members made of stainless steel.
- a surgical cutting instrument which can be manufactured economically for single patient use since precise bearing support is provided without expensive and complex structure modifications. Further, the surgical cutting instrument is not subject to galling or siezure during operation.
- a surgical cutting instrument comprising (i) an elongate outer tubular member having a proximal end, a distal end, and an opening disposed at the distal end, and (ii) an elongate inner tubular member having a proximal end, a distal end, and a cutting edge disposed at the distal end, the inner tubular member being movably received in the outer tubular member with the cutting edge thereof adjacent the opening of the outer member to permit the cutting edge to engage and cut bodily tissue through the opening, the instrument being characterised by a coating of titanium nitride formed on the inner tubular member by physical vapor deposition and extending from the distal end to the proximal end of the inner tubular member, the inner tubular member having an outer diameter substantially the same as the inner diameter of the outer tubular member such that the titanium nitride coating forms an elongate bearing surface extending along the length of the surgical cutting instrument.
- the surgical cutting instrument 10 according to the present invention includes an elongate tubular outer member 12 made of stainless steel and having a proximal end 14 fixed to a plastic hub 16 and a distal end 18 having an opening 20 therein forming a cutting port or window.
- An elongate tubular inner member 22 made of stainless steel is rotatably received in outer tubular member 12 and, as shown in Fig. 2, has a proximal end 24 fixed to a plastic hub 26 having a configuration to be received in a recess (not shown) in hub 16 and a distal end 28 having a cutting edge 30 formed thereon and positioned adjacent opening 20 such that the cutting edge can engage bodily tissue.
- the hub 26 has a central portion 32 with a transversely extending passage 34 therethrough, the inner tubular member extending through an axial bore in hub 26 to communicate with passage 34.
- a driven tang 36 extends from a portion 38 formed of transverse ribs and is adapted to be driven by a rotating slotted drive shaft of an electric motor in a handpiece.
- the opening 20 in the distal end of the outer tubular member 12 extends through the side and end walls to produce an edge cooperating with the cutting edge 30 formed on the distal end 28 of the inner tubular member 22 to form a full radius resector.
- the opening 20 can have any desired configuration to cooperate with the configuration of the cutting edge or edges on the distal end of the inner tubular member including, but not limited to, the various cutting tip designs of the Concept INTRA ARC Blade System, such as to form trimmers, meniscus cutters, end cutters, side cutters, full radius resectors, synovial resectors, whiskers, open end cutters, arthroplasty burrs, slotted whiskers, tapered burrs, oval burrs and punch forceps.
- surgical cutting instrument of the present invention is shown and described for use in the Concept INTRA ARC system, it will be appreciated that the surgical cutting instrument of the present invention can have any desirable hub configuration to be utilized with any drive system or handpiece capable of rotating or reciprocating an elongate inner tubular member within an elongate outer tubular member to cut or otherwise engage bodily tissue at the distal end and aspirate cut tissue through the lumen of the inner tubular member.
- the inner tubular member 22 has a titanium nitride (TiN) coating 40 formed thereon by physical vapor deposition, the coating 40 being disposed along substantially the full length of the inner tubular member from the distal end 28, including the cutting edge 30, to the proximal end 24. It is preferable to coat the entire length of the inner tubular member such that the coating 40 extends under the distal end of the hub 26.
- the coating of TiN 40 has a thickness of only 2.54 ⁇ m (0.0001 inch) such that the outer diameter of inner tubular member 22 can be substantially the same as the inner diameter of outer tubular member 12 with the coating engaging the inner surface of the outer tubular member to form a bearing along the length of the surgical cutting instrument.
- TiN coating By using the TiN coating to form a bearing along the length of the inner tubular member, rather than only on the distal end and cutting edges which engage the bodily tissue, unexpectedly a surgical cutting instrument is provided in an economically feasible manner for single patient use (disposable) while still providing precision positioning of the inner tubular member within the outer tubular member and while using stainless steel inner and outer tubular members.
- the TiN coating 40 is shown of exaggerated thickness in Figs. 2 and 3 since the coating is so thin that it cannot be illustrated if the figures are to scale.
- the inner tubular member is rotatable driven in the outer tubular member such that the cutting edge 30 engages bodily tissue via the cutting port or window formed by opening 20, and the cut tissue is aspirated through the lumen of the inner tubular member to exit the surgical cutting instrument via passage 34 which communicates with a suction passage at the handpiece.
- the cutting edge 30 will be maintained in precise position at the opening 20 due to the bearing formed by the TiN coating along the length of the surgical cutting instrument, and the considerable thrust and radial loads placed on the inner and outer tubular members will not cause galling due to the distribution of heat along the length of the bearing surface created by the TiN coating.
Landscapes
- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Engineering & Computer Science (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US314196 | 1989-02-23 | ||
US07/314,196 US4923441A (en) | 1989-02-23 | 1989-02-23 | Surgical cutting instrument with titanium nitride coating on an inner tubular member |
Publications (1)
Publication Number | Publication Date |
---|---|
EP0384735A1 true EP0384735A1 (fr) | 1990-08-29 |
Family
ID=23218971
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP90301871A Withdrawn EP0384735A1 (fr) | 1989-02-23 | 1990-02-21 | Instrument chirurgical coupant |
Country Status (2)
Country | Link |
---|---|
US (1) | US4923441A (fr) |
EP (1) | EP0384735A1 (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0590887A2 (fr) * | 1992-09-28 | 1994-04-06 | SMITH & NEPHEW DYONICS INC | Instrument chirurgical coupant |
WO2000078236A1 (fr) * | 1999-06-23 | 2000-12-28 | Smith & Nephew, Inc. | Revetements pour lames chirurgicales |
Families Citing this family (46)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5160318A (en) * | 1989-02-23 | 1992-11-03 | Linvatec Corporation | Surgical cutting instrument with ceramic coating on an inner tubular member |
US5061238A (en) * | 1989-02-23 | 1991-10-29 | Linvatec Corporation | Surgical cutting instrument with titanium nitride coating on an inner tubular member |
US5163946A (en) * | 1990-04-25 | 1992-11-17 | Mitek Surgical Products, Inc. | Suture rundown tool and cutter system |
US5084058A (en) * | 1990-04-25 | 1992-01-28 | Mitek Surgical Products, Inc. | Suture rundown tool and cutter system |
CA2089810C (fr) * | 1990-08-20 | 1998-12-29 | Suri A. Sastri | Instruments tubulaires d'incision pour endoscopie |
ATE166558T1 (de) * | 1990-10-19 | 1998-06-15 | Smith & Nephew Inc | Chirurgische vorrichtung |
US5447509A (en) * | 1991-01-11 | 1995-09-05 | Baxter International Inc. | Ultrasound catheter system having modulated output with feedback control |
US5304115A (en) * | 1991-01-11 | 1994-04-19 | Baxter International Inc. | Ultrasonic angioplasty device incorporating improved transmission member and ablation probe |
US5380274A (en) * | 1991-01-11 | 1995-01-10 | Baxter International Inc. | Ultrasound transmission member having improved longitudinal transmission properties |
US5368558A (en) * | 1991-01-11 | 1994-11-29 | Baxter International Inc. | Ultrasonic ablation catheter device having endoscopic component and method of using same |
US5324255A (en) * | 1991-01-11 | 1994-06-28 | Baxter International Inc. | Angioplasty and ablative devices having onboard ultrasound components and devices and methods for utilizing ultrasound to treat or prevent vasopasm |
US5405318A (en) * | 1992-05-05 | 1995-04-11 | Baxter International Inc. | Ultra-sound catheter for removing obstructions from tubular anatomical structures such as blood vessels |
US5957882A (en) * | 1991-01-11 | 1999-09-28 | Advanced Cardiovascular Systems, Inc. | Ultrasound devices for ablating and removing obstructive matter from anatomical passageways and blood vessels |
US5188589A (en) * | 1991-10-10 | 1993-02-23 | Alcon Surgical, Inc. | Textured irrigating sleeve |
US5269798A (en) * | 1992-02-19 | 1993-12-14 | Linvatec Corporation | Surgical cutting instrument with movable, inner and outer tubular members |
US5382228A (en) * | 1992-07-09 | 1995-01-17 | Baxter International Inc. | Method and device for connecting ultrasound transmission member (S) to an ultrasound generating device |
US5411514A (en) * | 1992-09-30 | 1995-05-02 | Linvatec Corporation | Bendable variable angle rotating shaver |
US5531757A (en) * | 1992-10-30 | 1996-07-02 | Kensey; Kenneth | Methods and stabilized instruments for performing medical procedures percutaneously without a trocar |
US5366465A (en) * | 1992-12-07 | 1994-11-22 | M. Ather Mirza | Endoscopic surgical procedure and instrument for implementation thereof |
US5376078B1 (en) * | 1992-12-10 | 1997-06-24 | Linvatec Corp | Rotatable surgical cutting instrument with positionally adjustable window |
US5569283A (en) * | 1993-09-03 | 1996-10-29 | United States Surgical Corporation | Surgical cutting instrument with guarded blade |
US5427118A (en) * | 1993-10-04 | 1995-06-27 | Baxter International Inc. | Ultrasonic guidewire |
US5417672A (en) * | 1993-10-04 | 1995-05-23 | Baxter International Inc. | Connector for coupling an ultrasound transducer to an ultrasound catheter |
US5390678A (en) * | 1993-10-12 | 1995-02-21 | Baxter International Inc. | Method and device for measuring ultrasonic activity in an ultrasound delivery system |
US5690660A (en) * | 1993-10-27 | 1997-11-25 | Stryker Corporation | Arthroscopic cutter having curved rotatable drive |
US5437630A (en) * | 1993-10-27 | 1995-08-01 | Stryker Corporation | Arthroscopic cutter having curved rotatable drive |
US5330422A (en) * | 1993-11-09 | 1994-07-19 | Biological Tissue Reserve, Inc. | Device for removing a biopsy fluid sample from a body cavity |
ES2149315T3 (es) * | 1994-04-15 | 2000-11-01 | Smith & Nephew Inc | Instrumento quirurgico curvo con elemento interior segmentado. |
US6689086B1 (en) | 1994-10-27 | 2004-02-10 | Advanced Cardiovascular Systems, Inc. | Method of using a catheter for delivery of ultrasonic energy and medicament |
DE69634612T2 (de) * | 1996-04-12 | 2006-01-19 | Howmedica Osteonics Corp. | Chirurgisches schneidegerät abnehmbar |
US5772627A (en) * | 1996-07-19 | 1998-06-30 | Neuro Navigational Corp. | Ultrasonic tissue resector for neurosurgery |
US5792167A (en) * | 1996-09-13 | 1998-08-11 | Stryker Corporation | Surgical irrigation pump and tool system |
US6342061B1 (en) | 1996-09-13 | 2002-01-29 | Barry J. Kauker | Surgical tool with integrated channel for irrigation |
US5911700A (en) * | 1997-03-11 | 1999-06-15 | Microaire Surgical Instruments | Power assisted liposuction and lipoinjection equipment |
US6053923A (en) * | 1998-03-17 | 2000-04-25 | Arthrotek, Inc. | Method and apparatus for abrading tissue |
US6256859B1 (en) | 1998-09-25 | 2001-07-10 | Sherwood Services Ag | Method of manufacturing an aspiring tool |
US6638289B1 (en) * | 2000-10-16 | 2003-10-28 | Stryker Corporation | Elongated endoscopic cutting accessories |
US6958071B2 (en) * | 2002-07-13 | 2005-10-25 | Stryker Corporation | Surgical tool system |
US20160001064A1 (en) * | 2005-07-22 | 2016-01-07 | The Spectranetics Corporation | Endocardial lead cutting apparatus |
US7998159B2 (en) * | 2006-11-15 | 2011-08-16 | Gyrus Ent, L.L.C. | Irrigated cutting device |
US20160287792A1 (en) * | 2015-04-02 | 2016-10-06 | XEND Medical, LLC | Plugged hypodermic needle system |
US11389178B2 (en) | 2019-04-22 | 2022-07-19 | Medos International Sarl | Bone and tissue resection devices and methods |
US11413056B2 (en) * | 2019-04-22 | 2022-08-16 | Medos International Sarl | Bone and tissue resection devices and methods |
US11350948B2 (en) | 2019-04-22 | 2022-06-07 | Medos International Sarl | Bone and tissue resection devices and methods |
US11324530B2 (en) | 2019-04-22 | 2022-05-10 | Medos International Sarl | Bone and tissue resection devices and methods |
LU101444B1 (de) * | 2019-10-15 | 2021-04-15 | G Hipp & Sohn Gmbh | Chirurgisches Instrument |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH946973A4 (fr) * | 1973-06-27 | 1975-06-30 | ||
GB2042902A (en) * | 1979-02-21 | 1980-10-01 | Dyonics Inc | Surgical cutting device |
JPS634056A (ja) * | 1986-06-24 | 1988-01-09 | Toyota Motor Corp | タ−ボチヤ−ジヤのフロ−テイングベアリング |
EP0286415A2 (fr) * | 1987-04-09 | 1988-10-12 | John Ewart Alfred Wickham | Désintégrateur de tissus |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3941903A (en) * | 1972-11-17 | 1976-03-02 | Union Carbide Corporation | Wear-resistant bearing material and a process for making it |
US4681541A (en) * | 1985-07-05 | 1987-07-21 | Snaper Alvin A | Dental bur with enhanced durability |
US4811734A (en) * | 1987-08-13 | 1989-03-14 | Baxter Travenol Laboratories, Inc. | Surgical cutting instrument |
-
1989
- 1989-02-23 US US07/314,196 patent/US4923441A/en not_active Expired - Fee Related
-
1990
- 1990-02-21 EP EP90301871A patent/EP0384735A1/fr not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH946973A4 (fr) * | 1973-06-27 | 1975-06-30 | ||
GB2042902A (en) * | 1979-02-21 | 1980-10-01 | Dyonics Inc | Surgical cutting device |
JPS634056A (ja) * | 1986-06-24 | 1988-01-09 | Toyota Motor Corp | タ−ボチヤ−ジヤのフロ−テイングベアリング |
EP0286415A2 (fr) * | 1987-04-09 | 1988-10-12 | John Ewart Alfred Wickham | Désintégrateur de tissus |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0590887A2 (fr) * | 1992-09-28 | 1994-04-06 | SMITH & NEPHEW DYONICS INC | Instrument chirurgical coupant |
EP0590887A3 (fr) * | 1992-09-28 | 1994-10-19 | Smith & Nephew Dyonics | Instrument chirurgical coupant. |
WO2000078236A1 (fr) * | 1999-06-23 | 2000-12-28 | Smith & Nephew, Inc. | Revetements pour lames chirurgicales |
Also Published As
Publication number | Publication date |
---|---|
US4923441A (en) | 1990-05-08 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): BE DE FR GB LU NL |
|
17P | Request for examination filed |
Effective date: 19901006 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 19920901 |